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39
40#ifndef QIMAGEREADER_H
41#define QIMAGEREADER_H
42
43#include <QtGui/qtguiglobal.h>
44#include <QtCore/qbytearray.h>
45#include <QtCore/qcoreapplication.h>
46#include <QtGui/qimage.h>
47#include <QtGui/qimageiohandler.h>
48
49QT_BEGIN_NAMESPACE
50
51
52class QColor;
53class QIODevice;
54class QRect;
55class QSize;
56class QStringList;
57
58class QImageReaderPrivate;
59class Q_GUI_EXPORT QImageReader
60{
61 Q_DECLARE_TR_FUNCTIONS(QImageReader)
62public:
63 enum ImageReaderError {
64 UnknownError,
65 FileNotFoundError,
66 DeviceError,
67 UnsupportedFormatError,
68 InvalidDataError
69 };
70
71 QImageReader();
72 explicit QImageReader(QIODevice *device, const QByteArray &format = QByteArray());
73 explicit QImageReader(const QString &fileName, const QByteArray &format = QByteArray());
74 ~QImageReader();
75
76 void setFormat(const QByteArray &format);
77 QByteArray format() const;
78
79 void setAutoDetectImageFormat(bool enabled);
80 bool autoDetectImageFormat() const;
81
82 void setDecideFormatFromContent(bool ignored);
83 bool decideFormatFromContent() const;
84
85 void setDevice(QIODevice *device);
86 QIODevice *device() const;
87
88 void setFileName(const QString &fileName);
89 QString fileName() const;
90
91 QSize size() const;
92
93 QImage::Format imageFormat() const;
94
95 QStringList textKeys() const;
96 QString text(const QString &key) const;
97
98 void setClipRect(const QRect &rect);
99 QRect clipRect() const;
100
101 void setScaledSize(const QSize &size);
102 QSize scaledSize() const;
103
104 void setQuality(int quality);
105 int quality() const;
106
107 void setScaledClipRect(const QRect &rect);
108 QRect scaledClipRect() const;
109
110 void setBackgroundColor(const QColor &color);
111 QColor backgroundColor() const;
112
113 bool supportsAnimation() const;
114
115 QImageIOHandler::Transformations transformation() const;
116
117 void setAutoTransform(bool enabled);
118 bool autoTransform() const;
119
120#if QT_DEPRECATED_SINCE(5, 15)
121 QT_DEPRECATED_VERSION_X_5_15("Use QColorSpace instead")
122 void setGamma(float gamma);
123 QT_DEPRECATED_VERSION_X_5_15("Use QColorSpace instead")
124 float gamma() const;
125#endif
126
127 QByteArray subType() const;
128 QList<QByteArray> supportedSubTypes() const;
129
130 bool canRead() const;
131 QImage read();
132 bool read(QImage *image);
133
134 bool jumpToNextImage();
135 bool jumpToImage(int imageNumber);
136 int loopCount() const;
137 int imageCount() const;
138 int nextImageDelay() const;
139 int currentImageNumber() const;
140 QRect currentImageRect() const;
141
142 ImageReaderError error() const;
143 QString errorString() const;
144
145 bool supportsOption(QImageIOHandler::ImageOption option) const;
146
147 static QByteArray imageFormat(const QString &fileName);
148 static QByteArray imageFormat(QIODevice *device);
149 static QList<QByteArray> supportedImageFormats();
150 static QList<QByteArray> supportedMimeTypes();
151 static QList<QByteArray> imageFormatsForMimeType(const QByteArray &mimeType);
152
153private:
154 Q_DISABLE_COPY(QImageReader)
155 QImageReaderPrivate *d;
156};
157
158QT_END_NAMESPACE
159
160#endif // QIMAGEREADER_H
161

source code of qtbase/src/gui/image/qimagereader.h